qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[PATCH 07/14] hw/i386/vmport: Add support for CMD_GETBIOSUUID


From: Liran Alon
Subject: [PATCH 07/14] hw/i386/vmport: Add support for CMD_GETBIOSUUID
Date: Tue, 10 Mar 2020 01:54:04 +0200

This is VMware documented functionallity that some guests rely on.
Returns the BIOS UUID of the current virtual machine.

Reviewed-by: Nikita Leshenko <address@hidden>
Signed-off-by: Liran Alon <address@hidden>
---
 hw/i386/vmport.c     | 14 ++++++++++++++
 include/hw/i386/pc.h |  1 +
 2 files changed, 15 insertions(+)

diff --git a/hw/i386/vmport.c b/hw/i386/vmport.c
index 2ae5afc42b50..7687f3368a55 100644
--- a/hw/i386/vmport.c
+++ b/hw/i386/vmport.c
@@ -26,6 +26,7 @@
 #include "hw/i386/pc.h"
 #include "hw/input/i8042.h"
 #include "hw/qdev-properties.h"
+#include "sysemu/sysemu.h"
 #include "sysemu/hw_accel.h"
 #include "qemu/log.h"
 #include "trace.h"
@@ -121,6 +122,18 @@ static uint32_t vmport_cmd_get_version(void *opaque, 
uint32_t addr)
     return port_state->vmx_version;
 }
 
+static uint32_t vmport_cmd_get_bios_uuid(void *opaque, uint32_t addr)
+{
+    X86CPU *cpu = X86_CPU(current_cpu);
+    uint32_t *uuid_parts = (uint32_t*)(qemu_uuid.data);
+
+    cpu->env.regs[R_EAX] = uuid_parts[0];
+    cpu->env.regs[R_EBX] = uuid_parts[1];
+    cpu->env.regs[R_ECX] = uuid_parts[2];
+    cpu->env.regs[R_EDX] = uuid_parts[3];
+    return cpu->env.regs[R_EAX];
+}
+
 static uint32_t vmport_cmd_ram_size(void *opaque, uint32_t addr)
 {
     X86CPU *cpu = X86_CPU(current_cpu);
@@ -171,6 +184,7 @@ static void vmport_realizefn(DeviceState *dev, Error **errp)
     port_state = s;
     /* Register some generic port commands */
     vmport_register(VMPORT_CMD_GETVERSION, vmport_cmd_get_version, NULL);
+    vmport_register(VMPORT_CMD_GETBIOSUUID, vmport_cmd_get_bios_uuid, NULL);
     vmport_register(VMPORT_CMD_GETRAMSIZE, vmport_cmd_ram_size, NULL);
 }
 
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 7f15a01137b1..ea87eb93511e 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -140,6 +140,7 @@ typedef uint32_t (VMPortReadFunc)(void *opaque, uint32_t 
address);
 
 typedef enum {
     VMPORT_CMD_GETVERSION       = 10,
+    VMPORT_CMD_GETBIOSUUID      = 19,
     VMPORT_CMD_GETRAMSIZE       = 20,
     VMPORT_CMD_VMMOUSE_DATA     = 39,
     VMPORT_CMD_VMMOUSE_STATUS   = 40,
-- 
2.20.1




reply via email to

[Prev in Thread] Current Thread [Next in Thread]